baber/WOPTO huggingface dataset:
Patent JP-S61139051-A (JP)
Title: Semiconductor device
Inventor: HIDESHIMA MAKOTO
IPC: H01L25/07
Filed: 1984-12-11
Abstract: PURPOSE:To reduce electric effect on transistor chips, which are connected in parallel, by forming an emitter electrode taking out lead at the center between the parallel transistor chips or in such a manner the approximately equal distance is provided. CONSTITUTION:An external electrode taking out lead 13 of an emitter is arranged at the center between the positions on a metal relay plate 12, to which bonding wires from two transistor chips 1 and 2 are connected. The lead is separated from the positions at the approximately equal distance. Then, electric resistance and the inductance component of wiring can be made equal along the path from each transistor chip 1 or 2 to the external electrode taking out lead 13 through each bonding wire 51 formed by aluminum and the like and the metal relay plate 12. Thus the operations of the parallel transistor chips are made equal, and the breakdown strength can be improved.
Patent JP-H07117704-A (JP)
Title: Rear-wheel steering device of vehicle
Inventor: HAYASHIDA OKIAKI
IPC: B60G11/42
Filed: 1993-10-19
Abstract: PURPOSE:To compact and simplify a rear-wheel steering actuator and its control by connecting two auxiliary spring gears through each elastic material, capable of compression and shear deformation, in a spot between a springing connecting end at the side of an undercarriage frame and an unspringing connecting end at the side of a rear axle housing. CONSTITUTION:A rear axle housing 50 is connected to an undercarriage from 10 via parallel linkage, and an interval between this housing 50 and the frame 10 is connected by those of laminated leaf-springs 51 and auxilairy spring gears 52 which are connected by each elastic material 60 capable of compression and shear deformation at an interval between an springing connecting end and an unspringing connecting end. With this constitution, at the time of driving a rear-wheel steering actuator 37, the laminated lead-spring 51 rockes a shackle link at a time when the rear acle housing 50 is rotated around a turning center point on the body longitudinal center line, whereby the auxiliary spring gears 52 are smoothly made into shear deformation, and thus resistance in time of rear-wheel steering will get off with a relatively smallish one, so that the power in the rear-wheel steering actuator 37 is settable to be smallness, insofar as possible.
Patent JP-H04138353-A (JP)
Title: Ultrasonic flaw detection apparatus
Inventor: NAITO HIROSHI
IPC: G01N29/28
Filed: 1990-09-29
Abstract: PURPOSE:To automatically set the optimum flow rate of water by measuring the distance up to the surface of the water of a probe holding part by a flaw detector and controlling the electromotive control valve arranged to a piping system from the measured result. CONSTITUTION:When water is supplied by the rotation of a probe holding part 2, the water 21 develops a hollow state by a centrifugal force to form the surface 22. A probe 3 is used in such a state that a material 4 to be inspected is not inserted in the holding part 2 and the distance up to the surface 22 is measured by a flaw detector 15 to judge the supply amount of water and a water supply increase and decrease indication signal is outputted to a control apparatus 10. The apparatus 10 outputs a control signal 19 for an electromotive type control valve on the basis of the signal 18 and the flow rate of water is increased and decreased by the electromotive type control valve 17 to keep the surface 22 optimum. Thereafter, the material 4 to be inspected is inserted to be subjected to continuous flaw detection. By this method, the optimum flow rate can be automatically set.
Patent JP-H02109032-A (JP)
Title: Rear projection type projector
Inventor: IWAHARA YUKIAKI
IPC: G03B21/62
Filed: 1988-10-19
Abstract: PURPOSE:To prevent projection on screens and to prevent a partition between adjacent videos from being conspicuous by providing a reflection preventing means on the surface of the partition provided between the adjacent videos. CONSTITUTION:A rear projection type projecter is provided with more than two adjacent optical projecting means magnifying and projecting the video of CRT 1 by a lens 2. Sufficiently large partition 5 is provided on the joint part of the screens 3 so as not to overlap stray parts arising around the adjacent pictures. The surface of the partition 5 is coated with reflection preventing material 6 such as black mat so as not to reflect stray light. Consequently, a screen frame can be shared by adjacent screens, and the partition between the adjacent pictures can be thin.
Patent JP-2001084682-A (JP)
Title: Automatic carrier reproducing device
Inventor: KATO SHUNJI
IPC: G11B17/30
Filed: 1999-09-16
Abstract: PROBLEM TO BE SOLVED: To accurately detect the presence of a disk even when a housing space is narrow by detecting a light projected to the signal recording surface of a disk protruded from the bottom part of a disk housing means positioned by a groove part. SOLUTION: A disk housing means (rack) 3a houses disks 2 in parallel in plural groove parts formed by plural partition plates 11a and 11b. A disk carrying means 4 is moved in the parallel arranging direction A of the disks 2 along a rail 3, and recognizes the address of each disk 2 by detecting a protruding piece 6a formed for each housing groove of the rack 3a by a disk position detector 46 composed of light emitting and receiving elements 15n' and 15m'. A disk presence detector 47 composed of light emitting and receiving elements 15N and 15m is provided in the protruded part 71 of the disk carrying means 4, and the presence of a disk 2 corresponding to an address is detected by a light reflected on the signal recording surface of the half-moon part of the disk 2 protruded downward from the through-hole 18e of the rack 3a.
Patent JP-2001083325-A (JP)
Title: Optical element, optical unit and display device
Inventor: OUCHI SATOSHI
IPC: G03B33/12
Filed: 1999-09-16
Abstract: PROBLEM TO BE SOLVED: To assure brightness and image quality and to make accuracy higher and a size smaller by adopting the constitution obtained by interposing multilayered dielectric films between first and second optical members etc., and interposing the at least one second optical member between the first optical member and the third optical member. SOLUTION: This optical element is provided with the optical member 22 adjacently to a prism 23 and another prism 23 is arranged adjacently to the surface on the reflection side of the optical member 22. The each other's adjacent parts are held by interposing holding members 26, such as UV effect adhesives or thermosetting adhesives, in such a manner that the adjacent or each other's positions do not move with each other. The multilayered dielectric films 25 are interposed only between the one prism 23 and the optical member 22.  As a result, strains are absorbed between the optical member 22 and the adhesives with respect to the stress and strain of the prism 23 itself, the stress and strain of the multilayered dielectric films 25 themselves by the curing of the adhesives and the strain by a temperature change, by which the improvement in the accuracy of the image quality performance is made possible.
Patent JP-H03123849-A (JP)
Title: Method for prolonging life of oxygen sensor
Inventor: ASADA AKIYOSHI
IPC: G01N27/41
Filed: 1989-10-06
Abstract: PURPOSE:To prevent the decrease in flat regions which indicate a threshold current value and to prolong the life of the sensor by impressing a sensor voltage to electrodes to the state in which electron conduction to a deteriorated oxygen ion conductor arises. CONSTITUTION:The sensor element M has the porous electrodes 2A, 2B which are respectively laminated on both surfaces of the oxygen ion conductor 1 consisting of stabilized zirconia and are impressed with the prescribed voltage. The element measures the oxygen concn. from the value of the ion current flowing in the state of impressing the sensor voltage to the electrodes 2A, 2B. The sensor voltage of the electrodes 2A, 2B is set at a high voltage for a specified period of time to the state in which electron conduction to a deteriorated oxygen ion conductor 1 arises if the flat regions indicating the generation of the threshold current is decreased as shown by a solid line by the long-term use and begin to indicate the tendency to deterioration. Thus, the relation between the sensor voltage shown by the solid line and the output current is changed to the relation shown by a dotted line by impressing the sensor voltage of the high voltage for the specified period of time. The ion conductivity is improved.
Patent JP-H10109227-A (JP)
Title: Machining electrode and machining device
Inventor: KOBAYASHI YASUNORI
IPC: B23H3/10
Filed: 1996-10-02
Abstract: PROBLEM TO BE SOLVED: To provide a machining electrode which can certainly prevent abnormal electrical discharge, and has excellent reliability in machining accuracy to a desired part of a workpiece, and can be used for precise machining. SOLUTION: In an electrode, a conductive body 22 is unitedly provided in an insulating body 21, and exposed outside from the end face of the insulating body 21. A burr is produced on the opening 24a of a hole 24 drilled in the recessed part 23 of a workpiece 1A. The anode of a D.C. power source is connected to the workpiece 1A, and the conductive body 22 of the electrode 20 is ground-connected to be a cathode. A D.C. current is applied through an electrolyte between the workpiece 1A and the conductive body 22 of the electrode 20 to remove the burr produced on the opening 24a. In the case where the size and shape of the workpiece are made to suit or the accuracy of shape deteriorates, the insulating body 21 of the electrode 20 and the conductive body 22 exposed outside from the above body 21 can be repaired by a reforming process such as grinding.
Patent JP-2000087116-A (JP)
Title: Weldable sintered parts and their manufacture
Inventor: ASAKA KAZUO
IPC: B22F7/08
Filed: 1998-09-16
Abstract: PROBLEM TO BE SOLVED: To obtain weldable parts in which joining between a green compact and a steel material part can be completed simultaneously with sintering/alloying of the green compact by a single process by providing a member made of sintered alloy and a member made of weldable steel material, where either of these members is provided with a hole or a recess and the other is provided with a shaft or a projection, and fitting the hole of the member having a hole or a recess and the shaft of the member having a shaft or a projection together to carry out joining. SOLUTION: When a member (inner member) composed of steel material and having a shaft or a projection and a member (outer member) composed of green compact and having a hole or a recess are fitted and sintered, a green compact having a composition where the amount of expansion in a high temperature region of >=800 deg.C becomes smaller than that of the steel material is used. Further, it is preferable that, when an outer member composed of steel material and an inner member composed of green compact are fitted and sintered, a green compact having a composition where the amount of expansion in a high temperature region of >=800 deg.C becomes larger than that of the steel material is used. As for a fit tolerance between the hole of an outer member and the shaft of an inner member, running fit of <=5 μm clearance or close fit of <=60 μm interference is preferred.
Patent JP-2000087117-A (JP)
Title: Method for joining valve shaft of solenoid valve to sintered movable iron core
Inventor: ASAKA KAZUO
IPC: B22F7/08
Filed: 1998-09-16
Abstract: PROBLEM TO BE SOLVED: To perform the sintering of a green compact and its joining to a valve shaft by a single process, to reduce the size and weight of a movable iron core, and to improve the responsiveness of a solenoid valve by compacting a powder of ferromagnetic material excellent in soft magnetic properties or a powder mixture of equivalent composition into the required shape and size of a movable iron core, fitting the resultant green compact in the prescribed position of a valve shaft, and carrying out sintering. SOLUTION: It is preferable that the material of a sintered movable iron core is composed of any of pure iron, Fe-P-alloy, Fe-Si alloy, Fe-Si-P alloy, Permalloy (R) alloy, Permendur (R) alloy, and electrical stainless steel materials, and further, as for a fit tolerance between the inside diameter of a green compact and the valve shaft, running fit of <=5 μm clearance or close fit of <=60 μm interference is preferred. Moreover, the valve shaft is composed preferably of a non-magnetic material of <=100 magnetic permeability. Because no allowance for machining is necessary for attachment to the valve shaft in this method, the movable iron core can be reduced in size and weight.  Further, the amount of expansion of the green compact, in the high temperature region where sintering proceeds, is smaller than that of the valve shaft composed of melted material, and the valve shaft can be held tight by the green compact.
Patent JP-2001082962-A (JP)
Title: Vibratory gyroscope
Inventor: KIKUCHI TAKAYUKI
IPC: G01C19/56
Filed: 1999-09-16
Abstract: PROBLEM TO BE SOLVED: To reduce the temperature drift of a vibratory gyroscope which uses a vibrator. SOLUTION: This vibratory gyroscope for detecting rotary angular velocities includes a vibrator 1A formed along a predetermined surface, a drive means for exciting vibration of the vibrator in a drive mode within the predetermined surface, and a detecting means for detecting the vibration in a detection mode within the predetermined surface. The vibrator has vibrating systems 3A, 3B, detection vibrating systems 4A, 4B, and a connection 2A for interconnecting the vibrating systems, and the drive vibrating systems and the detection vibrating systems have respective bent vibrating pieces 5A, 5B, 6A, 6B projecting from the connection.  A spurious mode is excited in the vibrator to meet a relationship represented by the formula: 0.70×α<=Δf/Δfs<=1.30×a α=1.7a/b×(c/d)3/2 where Δf is the difference in natural resonant frequency between the vibration of the drive mode and the vibration of the detection mode; Δfs is the difference in natural resonant frequency between the drive mode and the spurious mode; (a) is the width of each bent vibrating in the detection vibrating system; b is the width of each bent vibrating piece in the drive vibrating system; c is the number of drive vibrating systems; and d is the number of detection vibrating systems.
Patent JP-H11102773-A (JP)
Title: Spiral tubular heater and manufacture thereof
Inventor: INOUE HIROSHI
IPC: C09J163/00
Filed: 1997-09-26
Abstract: PROBLEM TO BE SOLVED: To easily mount a spiral tubular eater to a heated body with good adhesion by folding a flexible conductive base material provided in parallel with a longitudinal direction, at least once to take out both end parts from one side of a spiral material. SOLUTION: In the case of applying a spiral tubular heater to a heated body, the tubular heater 1 is pushed open to insert the heated body. With the heated body maintained in that state, the tubular heater 1 is rotated, and the heated body is taken into the tubular heater 1 in association with this rotation. The tubular heater 1 can thus be mounted to the heated body relatively easily and rapidly, by only axially rotating the tubular heater 1, and moreover after being mounted, since the tubular heater 1 recovers into its original shape so that it can be mounted uniformly to the heated body in good order. The tubular heater 1 can therefore be applied, even in the case degrees of freedom being hardly present and when both the end parts of the heated body are connected to a large-sized device or the like.
Patent JP-H06111995-A (JP)
Title: Microwave plasma treating device
Inventor: KOTANI KOJI
IPC: H01L21/302
Filed: 1992-09-30
Abstract: PURPOSE:To secure safety by restraining leakage of a microwave from a connecting part, generating plasma stably in a plasma generating chamber, and preventing discharge or a temperature rise in the connecting part. CONSTITUTION:A microwave oscillator 27, a wave guide 26 to transmit a microwave, a dielectric line 20 connected to the wave guide 26, a reactor 10 having a microwave introducing window 23 arranged opposite to the dielectric line 20 and a sample holding part 16 arranged in the reactor 10, are provided. An electromagnetic wave shielding member 30 is interposed in a connecting part 19 between a reactor side wall 11 and a metallic cover body 21 to cover an upper surface 20a and a side surface 20 of the dielectric line 20.
Patent JP-H06118968-A (JP)
Title: Reducing device for in-cabin noise
Inventor: NAKAMURA MASAHIRO
IPC: G10K11/16
Filed: 1992-09-30
Abstract: PURPOSE:To obtain a preferable sound elimination effect in any frequency range by using plural speakers in combination when a reference signal synchronized with the vibration of an engine becomes less than a specific value. CONSTITUTION:Respective positions are so set that the difference between the distance between a microphone 13a and a speaker 14a1 and the distance between the microphone 13a and a speaker 14a2 is <=1/4 as long as the wavelength at a specific low frequency as a sound pressure level becomes low; and a system (b) is also set similarly. When rotation pulses from an engine rotating speed sensor 12 decreases below the specific frequency, a controller 2 controls a speaker selection switch 3; and then the system (a) uses not only a power amplifier 24a1 and the speaker 14a1, but also a power amplifier 24a2 and the speaker 14a1 in combination and the system (b) also uses a power amplifier 24b and the speaker 14b2 in combination in addition to a power amplifier 20b1 and the speaker 14b1.
Patent JP-H06118121-A (JP)
Title: Deterioration detection circuit of semiconductor switch element
Inventor: KOBAYASHI TADAO
IPC: G01R31/26
Filed: 1992-10-01
Abstract: PURPOSE:To achieve the simplification of circuit constitution and the reduction of steady loss in the circuit detecting the deterioration of each semiconductor switch element in a semiconductor switch circuit. CONSTITUTION:Points U1, V1, W1 are points between thyristors 3 in the respective arms 2 of a switch circuit 1. Each of series circuits is constituted of a pair of voltage dividers 5 and the series circuits are connected across the points U1, V1, W1 and the points U2, V2, W2 between the voltage dividers 5 in the respective series circuits become detection output terminals. Transformers are respectively connected to the detection output terminals. Detection outputs are transmitted to a control unit through the transformers and the control unit analyzes the detection outputs to confirm the deterioration of the thyristors.
Patent JP-H01151541-A (JP)
Title: Fluorine-containing cyclopentane derivative and production thereof
Inventor: MORISAWA YOSHITOMI
IPC: C07D239/553
Filed: 1987-10-20
Abstract: NEW MATERIAL:A 3 (or 4)-fluoro-2-hydroxy-1-substituted-4-hydroxymethyl cyclopentane derivative shown by formula I (B is residue of nucleic acid bases, azido, amino or protected amino; R<1> and R<2> are H or protecting group; k is 0 or 1). EXAMPLE:1-[3alpha-Fluoro-2alpha-hydroxy-4beta-hydroxymethyl-1beta-cycl opentyl]uracil. USE:An antitumor agent or anti-viral agent. PREPARATION:A compound shown by formula II (R<3> is azido, amino or protected amino; R<4> and R<5> are protecting group; Y is H or eliminable active group) is fluorinated with a fluorinating agent such as tetraalkylammonium fluoride in a solvent such as THF or acetonitrile at -70 deg.C-room temperature to give a compound shown by formula I.
Patent JP-H0568882-A (JP)
Title: Production of honeycomb structural catalyst carrier consisting essentially of titanium oxide composition
Inventor: YAMAGUCHI TOSHIO
IPC: B01J35/04
Filed: 1991-09-13
Abstract: PURPOSE:To provide a producing method for a titanium oxide system honeycomb structural catalyst carrier consisting of not less than 100 cells having excellent strength properties and a specific surface area. CONSTITUTION:After a metatitanic acid hydrate is molded, calcined and crushed, then, this crushed material is incorporated with barium titanate, molding auxiliary and water and kneaded, moreover, this kneaded material is extrusion molded to a honeycomb type structure and dried, and, thereafter, the honeycomb type structural body is calcined at 500-800 deg.C to produce a honeycomb structural carrier consisting essentially of a titanium oxide composition.
Patent JP-S62125183-A (JP)
Inventor: MIYAUCHI SHIZUYA
IPC: F16H19/04
Filed: 1985-11-22
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H02219701-A (JP)
Title: Charging method in vessel
Inventor: BADORUDEIN KARIMUDEIN RANGUWAR
IPC: B65B3/22
Filed: 1989-10-11
Abstract: PURPOSE: To minimize the foam built-up in a head space of a container by dispensing the liquid by the predetermined variable volumes which are gradually increased into the containers at a predetermined number of stations for filling the container. CONSTITUTION: The containers 34 are successively positioned at a lower part of four filling stations 46, 48, 50, 52 which are arranged in series, and each station feeds a measured amount of specific liquid such as milk from a feed source 54 into the containers which are successively fed. On this occasion, the dispensing amounts of the stations 46, 48, 50, 52 are respectively determined to be 10, 14, 18, 22 ounces, 64 ounces in total for filling the container of 64 ounces for dispensing 16 ounces to each filling stations 46, 48, 50, 52, like the conventional method.
Patent JP-H08106110-A (JP)
Title: Electrochromic antidazzle mirror
Inventor: IWAMA TOKUMITSU
IPC: G02F1/15
Filed: 1994-10-03
Abstract: PURPOSE: To make it possible to easily obtain ideal sensitivity characteristics when a coloration quantity is automatically controlled by detecting ambient light quantity and backward light quantity. CONSTITUTION: A mirror body 49 is constituted by laminating, successively from a front surface side, a transparent glass 51 (glass), transparent electrodes 53, an EC layer 55 and a reflection layer 57 in common use as an electrode and sealing the entire part thereof with an adhesive 59 (sealing resin) and sealing glass 61. The EC layer 55 and the reflection layer 57 are notched at the corner of the mirror body 49 and a backward optical sensor 12, such as CdS, is fixed and arranged in the position behind the notched part 63 within the mirror body 65. As a result, backward light 71 is received in the backward optical sensor 12 through the notched part 63. The sealing glass 61 or the sealing resin 59 is subjected to coloring, etc., to constitute an optical filter means, by which the photodetecting quantity of the backward optical sensor 12 is adjusted.
Patent JP-H04145010-A (JP)
Title: Production of eclosion-promoting substance for potato cyst nematode using cultured plant root
Inventor: ASHIKAWA IKUO
IPC: A01N61/00
Filed: 1990-10-02
Abstract: PURPOSE:To produce a substance capable of promoting the eclosion of egg of potato cyst nematode and effective for the extermination of potato cyst nematode in high production efficiency by culturing the root of a plant of family Solanaceae in a medium containing a specific nitrate ion. CONSTITUTION:Root of a plant of genus Solanum, Lycopersicon, etc., family Solanaceae is cultured in a medium containing 10X10<-3> to 100X10<-3>N of nitrate ion and free from ammonium ion at 10-35 deg.C, preferably 23-28 deg.C to obtain the eclosion-promoting substance for potato cyst nematode accumulated in the root after or during the cultivation. The preferable amount of cultivation root planted to the medium is usually about 10mg to 10g of the root (in terms of fresh weight) based on 50ml of the liquid medium.